Francis wili



F. W. STOKES.

CASTING MACHINE.

APPLICATION FILED FEB. 14. 1919.

Patented uly 15, 1919.

il Pl FRANCIS WILLIAM STOKES, F NOTTINGHAM, ENGLAND cAs'rmG-MAcmn vSpecification of Letters 1 atent. Patented July g nal application filedJuly 9, 1918, Serial No. 244,099. Divided and-this application filedFebruary 14,

1919. Serial No. 277,080. I a

To all whom it may concern:

Be it known that I, FRANCIS WILLIAM STOKES, a subject of the King ofGreat Britain, residing at 20 Alexandra avenu'e, Mansfield, Nottingham,England, have invented new and usefullmprovements in Casting- Machines,of which the following is a specification.

This invention relates to casting machines of the kind in which arotating mold is .made use of, into which the metal or other material tobe cast is introduced through a centrally arranged pourer which iscarried by a supporting stem or spindle and is furnished with a storagereceptacle or reservoir mounted eccentrically with respect to the-pourer. My invention comprises certain improvements in pouring devicesof this type for the purpose of improving their efficiency and renderingthem more adaptable for use in specific cases. This application isadivision'ofw my application Serial No. 244,099, filed July 9, 1918,which resulted in Letters Patent No. 1,302,448. l

" A pouring device according to the invention is mounted upon a swivelsupport upon which the stem orspindle of the pourer is rotatably carriedand which is itself supported upon a trolley arranged to run uponv railson the bed-plate of the 'machine. The pourer may be constructed for thepurpose of introducing more than one class of metal into the mold,in-which caseit may be sub-v dlvided into compartments each of Whichisprovided with its own pouring opening displaced relatively to the other,the arrangement being such that when the pourer is tilted the metal hisdischarged in succession from the compartments.

In the accompanying drawings Figure 1 is a side elevation of one 'formof centrifugal casting machine constructed according to the invention.

Fig. 2 is an end view,- thereof. Fig.-3 is a section on the line 3 -3,Fig.1. Figs. 4 and 5 are a side view'and a plan view respectivelyillustrating a modified form of pourer, and

Figs. (Stand 7 are transverse sections respectively' on the lines 6 6,and 7-7 of Fig.4.

Referring firstto the constructionilliisl trated in Figs. 1 to 3 .(1'indicates the bedplate of the machine and b .i the mold which is-made intwo parts andis carried *thelmetal in the mold.

by the face-plate ciwhich-is keyed u on the spindle d mounted inbearingsal on the to be rotated from any suitablesource of power. Y

bed-plate a of the machine and designed e is the door of the mold and fare cen--;

vessel m, these-two parts being carried by the'spindle n mounted ih,bearings n n upon the swivel or capstan head n which can beturned 0n. thetrolleyodesigned to run on rails 0 on'the bed-plate a. This swivel-headenables the pourer 'Z to beturnedaway from. the mold to allow of accessthereto to remove the casting therein after the casting, operation.Stops n are 'provlded, for limiting the turning movement oftheswivel-head n in either direction. The spindle n is furnished with ahand-wheel p by means of which' the said spindle and con-i sequntly thepourer can be turned .when p the latter is inserted Within the mold b. I

As will be understood, by tilting the said pourer Z, which is mounted sothat it enters .the mold in an axial direction, the molten metal whichis contained in the reservoir .m, lscaused to runfrom' the latter andescapes over the lip Z into the mold, where it is subject to the actionof centrifugal force and distributed 'over the inner periphery offithe,

saidmold'r 0 is an adjustable'stop for stopping the trolley 0 when thepourer J has reached the correct position forpouring The pourer may insome cases be divided in two sections in such a way that on rotating.it, two different classes or kinds of metal may be introduced into themold in,

two layers; for example in the'caseof casting a steel wheel-tire thefirst rptat-ion of the pourer may introduce manganesexstecl for formingthe treadv of the'tire, and the 1 05 further rotationinay introduce asofter-steelto complete the inner portion of the casting.

Such a mold is shown in Figs. 4 to 7 and aswill be seen the pourer l isdivided by the internal'partition l which extends lori 11b gitudinallydown itscenter from one end nearly to the other so compartments Z and Zwhich are separated at the latter end by the radial partition Z. Eachcompartment is furnished with a pouring opening q the two openings.being out of alinement with one another so that when the pourer istilted the metal, say manganese steel, say from the compartment i isfirst introducedinto the mold and is followed by the metal from thecompartment l"! Claims; 1. A pouring mechanism comprising a support, amember swiveled to said support forhorizontal oscillation, bearingsfixed to said member, a rock shaft carried by the bearings and having anoperating handle, and a pourer fixed to said shaft.

2'; The combination with a centrifugal M x as to form the two saidsupport for displaced relatively mold, of a carriage .movable toward andaway from the. mold, a'member swiveled to horizontal oscillation,bearings fixed to said member, a rock shaft journaled in the bearingsand having-an operating handle, and a pourer fixedto said rock shaft andadapted to enter said mold.

3. A pourer for a centrifugal casting machine divided into two sectionsor compartments by apartition, each of said compartments having' apouring opening which is to the other,. whereby when the pourer istilted the/metal is discharged from the two compartments suc-.

cessively, substantially as hereinbefore described.

FRANCIS WILLIAMSTOKES.

